I raced at Cassidy Speedway and won Rookie of the year honors there. the reason Cassidy closed was not financial but Political. As Vvce president of MIARA I learned that much available money that should have gone to the club was being diverted into the pockets of crooked politicians.
One example of the inequities observed: The Deep sea diving Club on the Island, (I forget their actual name.) Received enough Money to buy some old war ships, have them enviromentally cleaned, and skuttled in the ocean so that they would have something to look at when they went diving. At that time their club had about 35 members. MIARA at that time had around 500 members and was blocked from receiving any of the same such funds we were entitled to as a non-profit organization.
Retroactive Zoning laws were passed to kill Cassidy Speedway and so eventually the track was forced to close. I recall Crowds of over 10,000 people often at Cassidy. In Canada Auto racing is Hated By political types.
I recall Many great times there. Many racers I have met since then all say Cassidy was their favorite Dirt Track!